EP1434119A3 - License management method and license management system - Google Patents

License management method and license management system Download PDF

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Publication number
EP1434119A3
EP1434119A3 EP03029213A EP03029213A EP1434119A3 EP 1434119 A3 EP1434119 A3 EP 1434119A3 EP 03029213 A EP03029213 A EP 03029213A EP 03029213 A EP03029213 A EP 03029213A EP 1434119 A3 EP1434119 A3 EP 1434119A3
Authority
EP
European Patent Office
Prior art keywords
digital signature
validity
creates
license management
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03029213A
Other languages
German (de)
French (fr)
Other versions
EP1434119A2 (en
Inventor
Yuuki Miyazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of EP1434119A2 publication Critical patent/EP1434119A2/en
Publication of EP1434119A3 publication Critical patent/EP1434119A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G06F21/1011—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to devices

Abstract

A product management server (2) creates a first digital signature to be attached to a product from a license private key (21) and an identification code. A route server (3) creates a second digital signature from a route private key (31) and a license public key (22) and creates a third digital signature from an activation public key (42). An authentication server (4) checks the validity of the second digital signature and the license public key (22) and the validity of the first digital signature and the product identification code and creates a fourth digital signature from an activation private key (41), a product code, and a terminal code. A user terminal (5) checks the validity of the fourth digital signature and the activation public key (42) and the validity of the fourth digital signature, product identification code, and terminal code and, based on the checking result, releases a software function limitation.
EP03029213A 2002-12-25 2003-12-18 License management method and license management system Withdrawn EP1434119A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002374970 2002-12-25
JP2002374970A JP2004206435A (en) 2002-12-25 2002-12-25 License management method, and license management system

Publications (2)

Publication Number Publication Date
EP1434119A2 EP1434119A2 (en) 2004-06-30
EP1434119A3 true EP1434119A3 (en) 2005-01-12

Family

ID=32463552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03029213A Withdrawn EP1434119A3 (en) 2002-12-25 2003-12-18 License management method and license management system

Country Status (3)

Country Link
US (1) US20040128395A1 (en)
EP (1) EP1434119A3 (en)
JP (1) JP2004206435A (en)

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Also Published As

Publication number Publication date
US20040128395A1 (en) 2004-07-01
EP1434119A2 (en) 2004-06-30
JP2004206435A (en) 2004-07-22

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